ZeptoMail
ZeptoMail: Pay-as-you-go transactional email with APIs, SMTP relay, webhooks, and reporting. Ranked #27 of 32 in Email APIs by our editors (5.8/10); pricing: Paid; best for cost-conscious transactional email senders.
At a glance
- Editor score5.8 / 10
- PricingPaid
- Best forCost-conscious transactional email senders
- Free planNo
- Paid from$2.50/unit usage-based
- Founded1996 · Chennai, India
- Facts checked16 Sep 2026
Where it wins
- $2.50 per 10,000 emails with no monthly payment
- API, SMTP relay, webhooks, templates, and delivery reporting
- Integrations for Zoho, WordPress, commerce, and automation tools
Where it doesn't
- No permanent free plan
- Designed for transactional messages, not newsletters or bulk marketing
- Inbound email is not verified
Our verdict on ZeptoMail
ZeptoMail is Zoho’s transactional email service for applications and websites. It sends automated messages such as verification codes, password resets, invoices, alerts, confirmations, and welcome emails through either an SMTP relay or REST email API. It suits developers and teams that need application email delivery with domain management, reusable text and HTML templates, suppression controls, email logs, and delivery and engagement reporting. Web and API access support both configuration and programmatic sending.
Pricing is structured around one pay-as-you-go plan rather than recurring tiers. The published price is $2.50 per 10,000 emails, with one credit equal to 10,000 emails. Credits are valid for up to six months, and the plan has no monthly payment. The pricing page also describes a first credit with 10,000 free transactional emails for one month, while the service does not have a permanent free plan. Optional dedicated IP addresses are available, subject to data center availability and eligibility requirements. This model fits senders with variable transactional volume, while teams planning newsletters or bulk marketing campaigns should choose a service intended for those workloads instead.
ZeptoMail’s delivery workflow includes delivery, bounce, open, and click webhooks, giving applications event data for follow-up handling. Domain verification, suppression list management, logs, and reporting add operational controls around application email. Integrations include Zoho Flow, Zoho CRM, Zoho Bigin, WordPress, Joomla, CraftCMS, Drupal, Zapier, Microsoft Power Automate, Make, Workato, WooCommerce, and Magento. Those connections make it suitable for websites, commerce systems, and automation-heavy workflows. Its main boundary is transactional scope, and inbound email is not verified, so teams requiring broader inbound email capabilities or marketing campaign tools should consider an alternative.
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ZeptoMail pricing
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ZeptoMail fact sheet
| Free plan | No |
|---|---|
| Paid from | $2.50/unit usage-based |
| Monthly send limit | Not verified |
| Inbound email | Not verified |
| Delivery event webhooks | Yes |
| SMTP relay | Yes |
| Email templates | Yes |
| Dedicated IP option | Yes |
| Deployment | Cloud |
| Platforms | Web |
| Integrations | 13 integrations: Zoho Flow, Zoho CRM, Zoho Bigin, WordPress, Joomla, CraftCMS … |
| Pricing | Paid (source) |
| Website | zoho.com |
| Facts checked | 16 Sep 2026 |
ZeptoMail integrations
ZeptoMail lists 13 integrations on its own site.
- Zoho Flow
- Zoho CRM
- Zoho Bigin
- WordPress
- Joomla
- CraftCMS
- Drupal
- Zapier
- Microsoft Power Automate
- Make
- Workato
- WooCommerce
- Magento
Alternatives to ZeptoMail
- MailgunA mature email API with broad sending, inbound routing, tracking, and deliverability tools.9.7
- Twilio SendGrid Email APIA mature email API with broad developer features, but no ongoing free plan.9.3
- MailjetA broad email platform combining APIs, automation, campaigns, and collaboration.9.1
See all ZeptoMail alternatives →
Also Ranked In
ZeptoMail is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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